Katsuta weather in October

In October, Katsuta sees average daytime highs of 20°C and overnight lows near 15°C, with 196 mm of rain across 12.7 wet days and about 11.1 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 18°C by the end. The sky is clear or mostly clear about 30% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 30 min by month's end. Set against the rest of the year, October is Katsuta's 6th-clearest and 6th-windiest month. For the whole year in context, see Katsuta's year-round climate.

Daytime high
20°
5th warmest
Overnight low
15°
8th coldest
Rainfall
196 mm
12.7 wet days
Daylight
11 h 06 min
5:51 AM – 4:55 PM
Cloud cover
62%
6th clearest
Wind
11 km/h
6th windiest
Solar energy
3.03 kWh/m²
Travel score
5.9
out of 10

Katsuta is dissolved municipality in Ibaraki prefecture, Japan.

Founded
1954

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 18°C by the end.

A typical October day in Katsuta reaches about 20°C in the afternoon and slips back to 15°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 23°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12218
22218
32217
42217
52217
62217
72117
82117
92116
102116
112116
122116
132016
142015
152015
162015
172015
182015
191914
201914
211914
221914
231914
241913
251913
261813
271813
281813
291813
301812
311812

How October really feels in Katsuta

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Katsuta weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 637.31.59.81.4
Feb / 637.3210.61.5
Mar11° / 11512.51.211.72.7
Apr16° / 12111.90.212.94.5
May20° / 14°14412.5013.95.8
Jun23° / 18°15114.7014.45.6
Jul27° / 22°17816014.25.4
Aug28° / 23°13114013.45.4
Sep25° / 20°17914.7012.25.8
Oct20° / 15°19612.7011.15.9
Nov15° / 989.5010.14.7
Dec10° / 647.60.39.62.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23862
33862
43961
53961
64060
74060
84258
94159
104159
114258
124258
134258
144357
154456
164456
174555
184654
194654
204753
214852
224951
235050
245149
255149
265248
275347
285446
295545
305644
315644

Chance of precipitation in October

Any precipitation

Katsuta gets around 196 mm of rain over 12.7 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 41% and peaks near 46% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
146
246
345
445
545
645
744
844
944
1043
1143
1242
1342
1441
1540
1640
1740
1839
1939
2039
2139
2239
2338
2438
2537
2637
2736
2836
2935
3035
3134

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1202537163
2212636152
3222636142
4242636131
5262635121
6272734111
7292733111
8312731101
934283090
1036282880
1138292570
1241292370
1343302160
1445301950
1547311750
1650311540
1752311340
1854311140
1957301030
205830930
216229720
226329620
236528520
246628510
256827410
266926410
277125310
287323310
297422310
307621300
317919200

Wind in October

Winds average 11 km/h in October.

Across October, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over October. Sunrise moves from 5:38 AM to 6:06 AM, and sunset from 5:16 PM to 4:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:385:16
211.65:395:14
311.65:405:13
411.55:405:11
511.55:415:10
611.45:425:08
711.45:435:07
811.45:445:06
911.35:455:04
1011.35:465:03
1111.25:475:01
1211.25:485:00
1311.25:484:59
1411.15:494:57
1511.15:504:56
1611.15:514:55
1711.05:524:53
1811.05:534:52
1910.95:544:51
2010.95:554:49
2110.95:564:48
2210.85:574:47
2310.85:584:46
2410.85:594:45
2510.76:004:43
2610.76:014:42
2710.76:024:41
2810.66:034:40
2910.66:044:39
3010.66:054:38
3110.56:064:37

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.03 kWh/m².

For context, solar energy here swings from a low near 2.36 kWh/m² to a high of 5.33 kWh/m² in May across the year — October's 3.03 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.3Moderate
43.2Moderate
53.2Moderate
63.2Moderate
73.2Moderate
83.1Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.0Moderate
252.9Moderate
262.9Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.9Moderate
312.9Moderate
Planning a trip in October

Hazard calendar for Katsuta

In seasonPeak

In October, Katsuta sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Katsuta sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Katsuta?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.9
Sightseeing
1st-best month of the year
3.1
Beach & pool
5th-best month of the year

October is a reasonable time to visit Katsuta for sightseeing.

What to pack for Katsuta in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Katsuta sees daytime highs around 20°C and nights near 15°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Katsuta in October

The nearest coast averages about 21°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 24°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 24 to Oct 28 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun19Cool
Jul22Refreshing
Aug24Warm
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Katsuta in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Katsuta peaks around July 24 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 24UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Katsuta in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Katsuta is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1821 µg/m³Dec 189 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul14Moderate
Aug13Moderate
Sep11Good
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Katsuta?

Katsuta sits at 36.4°N, 140.5°E, 21 m above sea level, in Japan. The nearest listed city is Hitachi-Naka, 1.0 km away.

Topography around Katsuta

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Katsuta.

Within 3 km, the terrain around Katsuta has only modest variations in elevation — a maximum elevation change of 48 m around an average of 18 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 179 m; within 80 km, large variations in elevation — a maximum elevation change of 1,005 m.

The land around Katsuta is covered by artificial surfaces (53%) and cropland (26%) within 3 km, water (29%), artificial surfaces (25%) and cropland (23%) within 16 km, and trees (39%), water (26%) and cropland (21%) within 80 km.

3 km
48 m
16 km
179 m
80 km
1,005 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Hitachi-Naka 1.0 km · Inada 6.0 km · Mito 8.0 km · Ōarai 9.0 km · Funaishikawa 10 km · Tokai 10 km · Okunoya 15 km · Ishitsuka 17 km

Japan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
100 V · 50 / 60 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$35,951
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.2
per 100k, 2023
Road deaths
3.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 446
Religion
Shintoism 49%Buddhism 46%other 4%Christianity 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Katsuta (36.3833°, 140.5333°, elevation 21 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).